Answer:
Simplified: -21-98t
Factored: -7(14t+3)
Step-by-step explanation:
The given expresion is:
14-28t-5(7+10t)
We expand the parenthesis to get:

We group like terms to get:

We combine similar terms to get:

We now factor to obtain:

……….Yes it is true that trapezoid is a polygon that has two bases
Step-by-step explanation:
5x-7+3x+27=180
8x+20=180
8x=160
x=20°.
hope this helps you.